"Sometimes you have a period piece where you have to research around it but, if the writers have done their homework well enough, the information is all in the script."

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I've spent the last 50 years or so steeping myself in the world's religions, and I've done my homework. I've gone to each of the world's eight great religions and sought out the most profound scholars I could find, and I've apprenticed myself to them and actually practiced each faith.

— Huston Smith